# This file is part of Librarian, licensed under GNU Affero GPLv3 or later.
# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
#
+from __future__ import unicode_literals
+
from lxml import etree
import re
+from librarian.dcparser import Person
+from librarian import get_resource
+
+
def _register_function(f):
""" Register extension function with lxml """
ns = etree.FunctionNamespace('http://wolnelektury.pl/functions')
ns[f.__name__] = f
-def reg_substitute_entities():
- ENTITY_SUBSTITUTIONS = [
+def reg_substitute_entities():
+ entity_substitutions = [
(u'---', u'—'),
(u'--', u'–'),
(u'...', u'…'),
"""XPath extension function converting all entites in passed text."""
if isinstance(text, list):
text = ''.join(text)
- for entity, substitutution in ENTITY_SUBSTITUTIONS:
+ for entity, substitutution in entity_substitutions:
text = text.replace(entity, substitutution)
return text
text = ''.join(text)
if not wrapping:
return text
-
+
words = re.split(r'\s', text)
-
+
line_length = 0
lines = [[]]
for word in words:
""" Converts "Name, Forename" to "Forename Name" """
if isinstance(text, list):
text = ''.join(text)
- return ' '.join([t.strip() for t in text.split(',', 1)[::-1]])
+ return Person.from_text(text).readable()
_register_function(person_name)
+def reg_texcommand():
+ def texcommand(context, text):
+ """Remove non-letters"""
+ if isinstance(text, list):
+ text = ''.join(text)
+ return re.sub(r'[^a-zA-Z]', '', text).strip()
+ _register_function(texcommand)
+
+
+def reg_lang_code_3to2():
+ def lang_code_3to2(context, text):
+ """Convert 3-letter language code to 2-letter code"""
+ result = ''
+ text = ''.join(text)
+ with open(get_resource('res/ISO-639-2_8859-1.txt'), 'rb') as f:
+ for line in f.read().decode('latin1').split('\n'):
+ list = line.strip().split('|')
+ if list[0] == text:
+ result = list[2]
+ if result == '':
+ return text
+ else:
+ return result
+ _register_function(lang_code_3to2)
+
+
+def mathml_latex(context, trees):
+ from librarian.embeds.mathml import MathML
+ text = MathML(trees[0]).to_latex().data
+ # Remove invisible multiplications, they produce unwanted spaces.
+ text = text.replace(u'\u2062', '')
+ return text
+
+
+def reg_mathml_latex():
+ _register_function(mathml_latex)
+
+
+def reg_mathml_epub(zipf):
+ from librarian.embeds.mathml import MathML
+
+ def mathml(context, trees):
+ data = MathML(trees[0]).to_latex().to_png().data
+ name = "math%d.png" % mathml.count
+ mathml.count += 1
+ zipf.writestr('OPS/' + name, data)
+ return name
+ mathml.count = 0
+ _register_function(mathml)